| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] [prep] [adj] | 244 |
|
| 2 | has been [v-ing] [prep] [noun prp] | 111 |
|
| 3 | been [v-ing] [prep] [adj] [noun prp] | 17 |
|
